Is there a pin-compatible replacement for RL30-800?

Yes, parts like RL30-900 and JK30-700 share the same radial leaded package. However, their electrical parameters like hold current differ, so they are not drop-in replacements without engineering review.

What risks should I check before replacing RL30-800?

The primary risk is mismatching the hold and trip currents. A higher current rating (e.g., RL30-900) may not protect your circuit adequately, while a lower rating (e.g., JK30-700) could cause nuisance tripping.

RL30-800 Alternatives, Datasheet & Cross Reference | RUILON

The RUILON RL30-800 is a 30V, 8A radial-leaded PTC resettable fuse for overcurrent protection. Alternatives exist but require careful review of current ratings to ensure proper circuit protection.

AI replacement insight

Electrical riskmedium

Current rating differences require circuit analysis.

Package risklow

Candidates share the same radial leaded package.

Can it be replaced directly?

No direct drop-in replacement has been identified. The closest options are parametric variants that require engineering validation of their current ratings.

Best replacement path

Upgrade to RL30-900 if the circuit can tolerate a higher current threshold of 9A.

Main risk

Mismatched current ratings (hold/trip) can lead to either inadequate circuit protection or nuisance tripping.

Recommended alternatives

A PTC fuse from the same series with identical package and voltage, but a higher 9A hold current.

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Alternative comparison matrix

Feature / factor	RL30-800	RL30-900	JK30-700	Compatibility / risk
Package	Radial Leaded	Radial Leaded	Radial Leaded	Radial Leaded — Same package and pin count.; JK30-700: Same package and pin count.
Voltage	30.0V	30.0V	30.0V	30.0V — Voltage rating is identical.; JK30-700: Voltage rating is identical.
Current	8.0A	9.0A	7.0A	9.0A / 7.0A — Higher hold current may not protect the circuit as intended.; JK30-700: Lower hold current creates risk of nuisance tripping.
Power	4.0W	4.2W	3.8W	4.2W / 3.8W — Slightly higher power dissipation, consistent with higher current.; JK30-700: Slightly lower power dissipation.

Application & sourcing insights

Questions & answers

The RL30-900 is a potential upgrade with a higher 9A hold current. It shares the same package and voltage but requires verifying if the increased current threshold is safe for your application.